Novel top drive moving section cable electrical interconnection system and protection method thereof

Abstract

The invention relates to the technical field of petroleum drilling, and discloses a novel top drive moving section cable electrical interconnection system which comprises a rubber hose, the two ends of the rubber hose are both fixedly connected with fixing flange pieces, an inner wire is arranged in the rubber hose, the two ends of the inner wire are both fixedly connected with cables, and the cables are arranged in the rubber hose. The tail ends of the two cables penetrate through the corresponding fixing flange pieces respectively, the outer walls of the two fixing flange pieces are fixedly connected with tension sensors, the inner wires are connected with normally-closed contacts of the tension sensors, the tail ends of the cables are connected into a disc brake emergency stop button loop, and preferably, the tension sensors are connected with the inner wires. The tension sensor comprises a normally closed contact module. The manufacturing technology of the moving section cable is improved, the moving section cable is connected with an existing disc brake hydraulic station power-off protection part of a drilling crew, when the top drive moving section cable is scraped and collided, a winch disc brake conducts emergency braking, and the top drive cable is prevented from being damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of oil drilling, and specifically to a novel electrical interconnection system for the traveling section cable of a top drive and a protection method therefor. Background Art

[0002] The top drive cable for oil drilling is a link that specifically provides power and related signal transmission for the top drive transmission system and control system. The cable is divided into two groups, a power cable and a control cable.

[0003] Existing top drive cables are manufactured using processes such as threading rubber hoses, fixing flange parts, and filling with glue to ensure that the cables have characteristics such as oil resistance, abrasion resistance, acid and alkali resistance, salt spray resistance, and fatigue bending resistance to meet the complex and changeable environment at the drilling site. This cable can well meet the requirements of the surface section. However, for the traveling section cable, due to uncertain factors such as personnel operation and weather, it often rubs against the protruding parts of the derrick, causing damage to the traveling cable. After the traveling cable is damaged by rubbing, not only does it incur the cost of repairing or replacing the cable, but more importantly, it is difficult to promptly resume the normal operation of the top drive at the site, thus causing the occurrence of downhole complex accidents.

[0004] In order to solve the serious consequences caused by the rubbing and breakage of the top drive traveling section cable, the present invention is designed to force the drilling winch to stop running at the initial stage of rubbing of the top drive traveling section cable, ensure that the internal cable is avoided from being damaged, and the problem can be immediately solved at the drilling site and production operation can be quickly resumed. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a novel electrical interconnection system for the traveling section cable of a top drive and a protection method therefor, which solves the problem of the serious consequences caused by the rubbing and breakage of the top drive traveling section cable.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A novel electrical interconnection system for the traveling section cable of a top drive, including a rubber hose, both ends of the rubber hose are fixedly connected with fixing flange parts, an inner wire is arranged inside the rubber hose, both ends of the inner wire are fixedly connected with cables, the ends of the two cables respectively penetrate through the corresponding fixing flange parts, tension sensors are fixedly connected to the outer walls of the two fixing flange parts, the inner wire is connected to the normally closed contact of the tension sensor, and the end of the cable is connected to the disc brake emergency stop button circuit.

[0007] Preferably, the tension sensor includes a normally closed contact module, the normally closed contact module is composed of a fixed contact and a movable contact. When there is no external force acting, the movable contact remains in contact with the fixed contact, and the contact is in a closed state. When an external force is applied to the sensor, the structure of the sensor will deform, causing the movable contact to separate from the fixed contact, and the contact is in an open state.

[0008] Preferably, the normally-closed contact module can be connected to other electronic devices. By monitoring the change in the contact state, the force applied to an object can be measured. When the contact is closed, the sensor outputs a low-level signal; when the contact is open, the sensor outputs a high-level signal. Through the change in the contact state, the magnitude and direction of the force applied to the object can be determined.

[0009] Preferably, the disc brake emergency stop button includes an emergency stop button module, and the emergency stop button module immediately triggers the brake system to perform a braking operation when a signal is sent.

[0010] Preferably, the emergency stop button module includes a wire connection unit, and the wire connection unit is used for the connection and installation between the cable and the wire.

[0011] Preferably, the wire connection unit consists of a socket and a terminal block. The socket conducts circuit connection processing through the combination of jacks and plugs. The terminal block is made of metal or insulating material and has multiple jacks or threaded holes for inserting or fixing wires.

[0012] Preferably, the emergency stop button module further includes a protection unit, and the protection unit can prevent the wires from loosening and falling off, and avoid short circuits and misconnections between the wires.

[0013] Preferably, a protection method for the electrical interconnection system of the new top drive traveling block cable includes the following steps: Step 1, the inner wires nested in the rubber hose are connected in series by connecting the head and the tail, and are connected to the normally-closed contacts of the tension sensors of the fixed flange parts. Two cables are strung into the disc brake emergency stop button circuit. When a cable is scratched, when the tension reaches the set value or the inner wire is scratched and broken, it is equivalent to pressing the emergency stop button, and the disc brake acts to brake, thereby protecting the top drive cable in the rubber hose from being damaged.

[0014] Working principle: When the top drive traveling block cable is manufactured, six inner wires are embedded in the rubber hose in six different directions. A tension sensor is installed at the fixed flange part. The six inner wires are connected in series and then connected to the normally-closed contacts of the tension sensor, and are connected to the disc brake power-off protection system. When a scratch occurs, when the tension sensor reaches the set tension, the normally-closed contact acts, or when the tension is too fast and the inner wire in the rubber hose is scratched and broken, in either of the two cases, the electrical signal can be interrupted, and the disc brake will issue an emergency braking instruction to make the winch stop running in time, thereby avoiding the expansion of losses.

[0015] The present invention provides a new type of electrical interconnection system for the top drive traveling block cable and its protection method. It has the following beneficial effects: By reforming the manufacturing process of the cable in the traveling section and connecting it to the power-off protection part of the existing disc brake hydraulic station of the drilling team, when the cable in the traveling section of the top drive is scratched or collided, the winch disc brake will be emergently braked to avoid damage to the top drive cable.

[0016] By reforming the rubber hose and fixed flange parts of the cable in the traveling section, it protects the cable in the traveling section of the top drive when it is scratched or collided, solves the problem that the original cable in the traveling section of the top drive will definitely be damaged when scratched or collided, and while ensuring production and safety, also avoids corresponding economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the cable reform of the present invention; Figure 2 is a side view of the cable reform of the present invention; Figure 3 is a circuit diagram of the winch disc brake control system for drilling of the present invention; Figure 4 is a circuit diagram at the emergency stop of the reformed disc brake of the present invention.

[0018] Among them, 1. Cable; 2. Fixed flange part; 3. Inner conductor; 4. Rubber hose; 5. Tensile sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0020] Please refer to the attached Figure 1 - attached Figure 4 , the embodiment of the present invention provides a new type of electrical interconnection system for the cable in the traveling section of the top drive, including a rubber hose 4. Both ends of the rubber hose 4 are fixedly connected with fixed flange parts 2. An inner conductor 3 is arranged inside the rubber hose 4. Both ends of the inner conductor are fixedly connected with cables 1. The ends of the two cables 1 respectively penetrate through the corresponding fixed flange parts 2. Tensile sensors 5 are fixedly connected to the outer walls of the two fixed flange parts 2. The inner conductor 3 is connected to the normally closed contact of the tensile sensor 5. The end of the cable 1 is connected to the disc brake emergency stop button circuit.

[0021] Specifically, when the cable 1 of the top drive traveling section is manufactured, six inner conductors 3 are embedded in the rubber hose 4 in six different directions, and a tension sensor 5 is installed at the fixed flange 2. The six inner conductors 3 are connected in series and then connected to the normally closed contact of the tension sensor 5, and are connected to the disc brake power-off protection system. When a collision occurs and the tension sensor 5 reaches the set tension, the normally closed contact operates. Or when the tension is too fast and the inner conductor 3 in the rubber hose 4 is cut off, in either of these two cases, the electrical signal can be interrupted, and the disc brake will issue an emergency braking command to stop the winch in time, thus avoiding the expansion of losses.

[0022] The tension sensor 5 includes a normally closed contact module, which consists of a fixed contact and a movable contact. When there is no external force, the movable contact remains in contact with the fixed contact, and the contact is in a closed state. When an external force is applied to the sensor, the structure of the sensor will deform, causing the movable contact to separate from the fixed contact, and the contact is in an open state.

[0023] The normally closed contact module can be connected to other electronic devices to measure the force exerted on an object by monitoring the change in the contact state. When the contact is closed, the sensor outputs a low-level signal; when the contact is open, the sensor outputs a high-level signal. By changing the contact state, the magnitude and direction of the force exerted on the object can be determined.

[0024] Specifically, the normally closed contact module is an electronic component composed of a normally closed contact and a corresponding control circuit. The normally closed contact is a switching element in a circuit. When there is no external control signal, the normally closed contact is in a closed state and current can flow through. When an external control signal is input, the normally closed contact will open and current cannot flow through. The normally closed contact module is commonly used in applications such as circuit control and switch control. It can be used to control the switch state in a circuit and realize the switching function of the circuit. The normally closed contact module adopts high-quality materials and reliable manufacturing processes, has a long service life and stable performance. The normally closed contact module usually has standard dimensions and interfaces, is easy to install and connect to other devices. The normally closed contact module can be controlled by different control signals, such as voltage, current, and optical signals. The normally closed contact module usually has low power consumption, can save energy and electricity bills. The normally closed contact module usually has functions such as overcurrent protection and overvoltage protection, which can protect the safe operation of the circuit and equipment.

[0025] The disc brake emergency stop button includes an emergency stop button module, and the emergency stop button module is to send a signal to immediately trigger the brake system to perform a braking operation.

[0026] The emergency stop button module includes a wire connection unit, and the wire connection unit is used for the connection and installation between the cable and the wire.

[0027] The wire connection unit consists of a socket and a terminal block. The socket conducts line connection processing through the combination of jacks and plugs. The terminal block is made of metal or insulating material and has multiple jacks or threaded holes for inserting or fixing wires.

[0028] The emergency stop button module further includes a protection unit, which can prevent wire loosening and detachment, and avoid short circuits and incorrect connections between wires.

[0029] A protection method for an electrical interconnection system of a new type of top drive traveling section cable includes the following steps: Step 1: The inner wires 3 nested in the rubber hose 4 are connected in series by connecting the head and the tail, and are connected to the normally closed contacts of the tension sensor 5 of the fixed flange 2. Two cables 1 are inserted into the emergency stop button circuit of the disc brake. When the cable 1 is scratched, when the tension reaches the set value or the inner wire 3 is scratched and broken, it is equivalent to pressing the emergency stop button, and the disc brake acts to brake, thereby protecting the top drive cable in the rubber hose 4 from being damaged.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel electrical interconnection system for the traveling section cable of a top drive, comprising a rubber hose (4), characterized in that: Both ends of the rubber hose (4) are fixedly connected with fixed flange parts (2). An inner wire (3) is arranged inside the rubber hose (4). Both ends of the inner wire are fixedly connected with cables (1). The ends of the two cables (1) respectively penetrate through the corresponding fixed flange parts (2). Tensile sensors (5) are fixedly connected to the outer walls of the two fixed flange parts (2). The inner wire (3) is connected to the normally closed contacts of the tensile sensors (5). The ends of the cables (1) are connected to the disc brake emergency stop button circuit.

2. The novel electrical interconnection system for the traveling section cable of a top drive according to claim 1, characterized in that: The tensile sensor (5) includes a normally closed contact module. The normally closed contact module consists of a fixed contact and a movable contact. When there is no external force acting, the movable contact remains in contact with the fixed contact, and the contact is in a closed state. When an external force is applied to the sensor, the structure of the sensor will deform, causing the movable contact to separate from the fixed contact, and the contact is in an open state.

3. The novel electrical interconnection system for the traveling section cable of a top drive according to claim 1, characterized in that: The normally closed contact module can be connected to other electronic devices. By monitoring the change of the contact state, the force applied to the object can be measured. When the contact is closed, the sensor outputs a low-level signal; when the contact is open, the sensor outputs a high-level signal. Through the change of the contact state, the magnitude and direction of the force applied to the object can be determined.

4. The novel electrical interconnection system for the traveling section cable of a top drive according to claim 1, characterized in that: The disc brake emergency stop button includes an emergency stop button module. The emergency stop button module is to send a signal to immediately trigger the brake system to perform a braking operation.

5. The novel electrical interconnection system for the traveling section cable of a top drive according to claim 4, characterized in that: The emergency stop button module includes a wire connection unit. The wire connection unit is used for the connection and installation between the cable and the wire.

6. The novel electrical interconnection system for the traveling section cable of a top drive according to claim 5, characterized in that: The wire connection unit consists of a socket and a terminal block. The socket is used for line connection processing through jacks and plugs. The terminal block is made of metal or insulating material and has multiple jacks or threaded holes for inserting or fixing wires.

7. The novel electrical interconnection system for the traveling section cable of a top drive according to claim 4, characterized in that: The emergency stop button module further includes a protection unit. The protection unit can prevent the wires from loosening and falling off, and avoid short circuits and incorrect connections between the wires.

8. A protection method for a novel electrical interconnection system for the traveling section cable of a top drive, applied to the novel electrical interconnection system for the traveling section cable of a top drive according to any one of claims 1-7, characterized in that, It includes the following steps: Step 1: The inner wire (3) nested in the rubber hose (4) is connected in a series manner by connecting the head and the tail, and is connected to the normally closed contacts of the tensile sensors (5) of the fixed flange parts (2). The two cables (1) are connected in series to the disc brake emergency stop button circuit. When the cable (1) is scratched, the tensile force reaches the set value or the inner wire (3) is scratched and broken, which is equivalent to pressing the emergency stop button, and the disc brake acts to brake, thereby protecting the top drive cable inside the rubber hose (4) from being damaged.

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